40cm Cassegrain Telescope
（40cm Telescope Dome in Sunset）
A 40cm Cassegrain Telescope is set on top of the First Building for Natural Sciences in Tokyo Gakugei University. The aperture size of Telescope is of 40cm. Other 10cm and 5cm small telescopes are attached to the 40cm Cassegrain telescope.
With this 40cm telescope, we observe some variavle stars and try to detect of occultations caused of extra-planets system.
We can observe some objects with ether CCD cameras or our own eye.
40cm Cassegrain Telescope Maker MITAKA KOUKI Aperture 400mm Focal length 1600mm Synthetic focal length 5000mm Angular Resolution 0.3arcsec Focal ratio 12.5 Limitting magnitudes 14.7mag
8cm Refracting Telescope
We have five 8cm refracting telescope in Astronomical Class. These are used in basic experiment for college students. They observe sunspots and distant things on the Earth. Our five 8cm refracting telescope have same performance.
8cm refracting Telescopes Aperture 80mm Focal length 1200mm Angular resolution 1.45arcsec Focal ratio 1.5 Limitting magnitudes 11.3mag
Cooled CCD Cameras
We have two cooled CCD cameras. They are attached to the 40cm Cassegrain telescope. We can carry out photometric observations with them. Obtained digitized data are analyzed with some computer applications.
（ MUTOH CV-04E ）
（ MUTOH SV-16E ）
Cooled CCD Cameras Type MUTOH CV-04E SV-16E Maker Mutoh Koheisha CCD chip KODAC KAF-0400 CCD frame size 6.9mm * 4.6mm 13.8mm * 9.2mm Array format 765 * 512 1552 * 1036 Pixel size 9micron×9micron 9micron×9micron A/D convert 18bit Cooled capacity temperature-40 degrees Celsius Filters Johnson U,B,V; Cousins R,I; L（IR-cut）
Development laboratory 1.
Development laboratory 2.
Some hardwares and softwares are developped in this laboratory.
We carry out optical experiments in this room.
We have development laboratories. We renewed a 60cm radio telescope (Very Small Telescope 1 = VST1) of the Institute of Astronomy (IoA), the University of Tokyo with IoA and with Osaka Prefecture University. The VST1 was set a millimeter radio telescope set in the Nobeyama radio Observatory (NRO), National Astronomical Observatory of Japan (NAOJ). The VST1 had been very small, but its high mobility enabled to wide servey observation. Our three university team improved spectrometer, receiver and softwares of the VST1. Tokyo Gakugei University team charged the improvement of spectrometer and some softwares. Instrumental first light was done in 2005 March 21.
We also developed another 1.5m radio telescope with Osaka Prefecture University. Tokyo Gakugei University team charged the development of spectrometer and some softwares.
We have other darkroom for optical experiments.
LIBRARY for ASTRONOMY LABORATORY
We perchased some academic and educational journals and books. For instance, they are ...
We, however, stoped to perchase MNRAS in 2002, PASP in 2005, A&A in 2012, AJ, ApJ, ApJS and ApJL in 2016.
- Anual Review of Astronomy and Astrophysics [=ARAA]
- The Astrophysical Journal (Main [=ApJ], Letters [=ApJL], Supplements [=ApJS])、
- The Astronomical Journal [=AJ]、
- Astronomy and Astrophysics [=A&A]、
- Monthly Notices of the Royal Astronomical Society [=MNRAS]、
- Publications of the Astronomical Society of Japan [=PASJ]、
- Publications of the Astronomical Society of the Pacific [=PASP]
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